Views: 12 Author: China xicheng Publish Time: 2021-03-29 Origin: China xicheng
The foul-smelling exhaust gas affects our lives, endangers our health, and destroys our environment. Therefore, everyone is earnest about malodorous waste gas treatment, and the types of malodorous waste gas are generally many and complicated, so how to remove it? Let's take a look at how to deal with odorous waste gas!
The odorous waste gas treatment methods include:
Molecular confinement adsorption reaction method: Under environmental disturbance conditions, molecular confinement technology makes air odor and harmful gas molecules adsorb, and fusion and the smell will undergo a specific chemical reaction (such as oxidative polymerization addition, etc.) to be solidified and removed from the air. When producing malodorous gas during industrial production, the activated carbon adsorption tower device can filter the gas.
Photocatalytic oxidation method: The ozone and ·OH (hydroxyl radicals) produced by the reaction of high-energy ultraviolet light beams with air and TiO2 decompose oxidize malodorous gases together. Simultaneously, the malodorous macromolecular gases break the chain structure under the action of ultraviolet rays. The malodorous gas substances are converted into odorless small molecular compounds or entirely mineralized to generate water and CO2, which are discharged into the atmosphere through the exhaust pipe after reaching the standard.
Combustion method: The method of degrading flammable malodorous substances through a strong oxidation reaction is suitable for treating high-concentration, small-volume flammable malodorous substances. The decomposition efficiency is high, but the equipment is corrosive, consumes fuel, has increased costs, and secondary pollution may be generated during the treatment. The chemical oxidation method uses an oxidant to oxidize malodorous substances. It is suitable for the treatment of medium and low-concentration malodorous gases. The treatment efficiency is high, but an oxidant is required, and the processing cost is high. The absorption method uses a solvent to absorb the malodorous substances in the odor and deodorizes the gas. High- and medium-concentration malodorous gases are treated with effective flow rates and mature processes. Still, the treatment efficiency is not high, the absorbent is consumed, and pollutants are only transferred from the gas phase to the liquid phase.
Principle of biological deodorization: In the presence of water, microorganisms, and oxygen, microorganisms' metabolism is used to oxidize and decompose odorous substances to achieve the purpose of purifying gas.
At present, the treatment of odor is still in the development stage, but the birth of activated carbon adsorption treatment equipment has made significant progress. Because the odor materials in the garbage transfer station are relatively mixed, the odor treatment equipment should also be more advanced to meet odor treatment needs. Requirements. Activated carbon adsorption tower is a piece of essential purification equipment for industrial production, which can reduce harmful gas emissions.